======================== unified (from filesystem) ========================
                                         'bitrate'  '187.324'
                                        'duration'  '232'
                                          'artist'  'Golden Earring'
                                     'text_people'  ''
                                         'release'  'The Devil Made Us Do It'
                                           'title'  'Bombay'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['hard rock', 'rock', 'dutch', '70s', 'classic rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '23'
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '124.011'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'The Devil Made Us Do It'
'TBPM' (BPM (beats per minute))                     '124.011'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         'Bombay'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Golden Earring'
'TRCK' (Track number/Position in set)               '23'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['hard rock', 'rock', 'dutch', '70s', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.11 dB'
'TXXX:replaygain_track_peak'                        '0.721829'

========================== row from database ==========================
                                              'id'  1384553
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/23 - Bombay.mp3
                                         'working'  None
                                         'bitrate'  187
                                    'duration_sec'  232
                                           'genre'  rock-cppex
                                        'filesize'  5458105
                                           'mtime'  1620737401
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 23 rock cppex
                                      'tag_artist'  Golden Earring
                                     'tag_release'  The Devil Made Us Do It
                                       'tag_title'  Bombay
                                             'bpm'  124.011
                                    'search_title'  'bombay':1
                                   'search_artist'  'earring':2 'golden':1
                                  'search_release'  'devil':2 'do':5 'it':6 'made':3 'the':1 'us':4
                                     'search_rest'  '00poprockelectronic':1 '23':7 'cppex':9 'files':5,6 'loose':3,4 'rock':8 'unsorted':2
                                    'search_combo'  '00poprockelectronic':10 '23':16 'bombay':1A 'cppex':18 'devil':5C 'do':8C 'earring':3B 'files':14,15 'golden':2B 'it':9C 'loose':12,13 'made':6C 'rock':17 'the':4C 'unsorted':11 'us':7C
                                    'tag_tracknum'  23
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['hard rock', 'rock', 'dutch', '70s', 'classic rock']
                                        'tag_date'  1975
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620737400.6139328  (2021-05-11 14:50:00)
                             'size'  5458105